Abstract:
Diseases in fish, of bacterial origin were observed in the estuaries of Goa. High fish mortality rate was seen in the months of July to October, of year 1993, and the disease persisted at a reduced intensity up to January 1994. It was also observed that the disease was severe in the water bodies, that were near the agricultural fields. The disease affected the estuarine fish, like Catfish (Macrones oculatus), Mullet (Mugil cephalus), Karchani (Gerres. sp), Pearlspot (Etroplus suratentsis), etc. The morbid fish showed skin ulceration and infection all over the body.Pathogens were isolated also from internal organs such as, kidney, liver and spleen, besides isolating them from infected skin and gills.
